Leather-staking machine



(No Model.) 2 Sheets-Sheet 1..

P; H. DALEY.

LEATHER STAKING MACHINE.

No 893,544. Patented Nov. 27, 1888.

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(No Model.) 2 SheetsSheet 2.

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LEATHER STAKING MACHINE.

No. 398 544. Patented Nov. 27, 1888.

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PATRICK. II. DALEY, OF LYNN, MASSACHUSETTS.

LEATHER-STAKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 393,544, dated November27. 1888.

(No model.)

To all whom it may concern.-

Be it known that 1', PATRICK H. DALEY, of Lynn, in the county of Essexand State of Massachusetts, have invented a new and usefulStaking-Machine, of which the following is a specification, referencebeing had to the accompanying drawings, in which Figure 1 is alongitudinal central section of the machine embodying my invention, anauxiliary portion of the machine being shown in one position. Fig. 2 isasimilarview showing the auxiliary attachment in another position. Fig.3 is a plan, and Fig. 4. is a transverse section on line 4 at of Fig. 1.

The object of my invention is to produce a machine specially adapted forstretching and softening hides and lcather,in which danger of injuringthe stock operated on is lesscned,and bywhich the stock is moreperfectly stretched and softened than in the machines hitherto used.

Another object of my invention is to produce a machine for this purposewhich is simpler, and therefore cheaper, than the other machines of thiskind now in use.

My invention consists, first, in the combina tion of a jaw provided withtwo projections with a jaw having a blade which, when the jaws are shut,extends between these projections, and, secondly, in combination with areciprocating carrier provided with a fixed and also a fulcrumed jaw, ofmeans for closing the jaws, as more fully described hereinafter.

In the drawings, which show my invention embodied in the best way nowknown to me, A is the main frame, 3 a carrier, and D I) the jaws.

Carrier 13 is mounted in ways a in franieA, and is provided with a jaw,D, fixed to it, and a jaw, D, fulcrumcd toit. GarrierBis reciprocated inways a, preferably by the means shown that is, by drivingwheel A,mounted in frame A, and a connecting-rod,a,counecting the driving-Wheeland the carrier in a way too well known to require description. Jaws D Dare closed either by the engagement of a projection, F, (on aconnecting-rod, a,) with jaw D, or by the engagement of lever F with ajaw, D, as desired. I prefer to construct my machine with the projectionF,(which is preferably a roll,as shown,) to engage the jaw D, which isrecessed at F to receive the roll in such wise that when theconnecting-rod a is brought into the position shown in Fig. 2 the jaw Dis moved into its operative position with jaw D, and also to provide thelever F, which is conveniently fulcrumed to frame A, and to make it ofthe proper form for co-operating with jaw D by engaging, preferably, aroll, f, on jaw D, and to control the lever by a pedal, F. In machinesof this class heretofore constructed the mechanism for actuating thejawhas been more orless cumbersome and expensive,and the machines have madea great deal of noise in working, and this objection I have eliminatedin a great measure by the mechanism above explained.

In the course of my experiments relating to stretching hides, &c., Ihave discovered that it is of great practical importance that the stockoperated on should not be impinged at directly opposite points by aprojection or roll and a blade. For example, as in many machineshitherto in use in which the stock when the jaws are closed has beenheld between a roll or projection and theedge of the blade,the roll andthe edge of the blade being directly opposed to each other. and theresult being that tender skins and hides having soft spots when thusengaged are often torn during the back-stroke of the jaws, I have alsodiscovcred that for the best results it is desirable that one of thejaws should be provided with two projections, which are preferablyrubber rolls, and that the other jaw should be provided with a blade orscraper, which, when the jaws are shot, is between thetwo projectionsreferred to. In the drawings, cl d are the projections, and d the bladeor scraper, the two projections d d being on one jaw,while the scraperis on the companion jaw. This arrangement is an important feature of myinvention, the roll d acting on the stock after it has left the blade,and having a function as a polishing-roll, the skin or hide being nippedbetween the peripheral surface of the inner roll, (Z, and the innersurface of the blade d.

The cooperation of the projections and the blade or scraper will bereadily understood by all skilled in the art without furtherdescription. As skins and hides vary in thickness, it is highlydesirable that the distance between the main projection cl and thesideof theblade d which is nearest the projection should be increased ordiminished as desired, and this is readilyaccomplished by making one ofthe projectionssay the projection dadjustable, and for this purpose Iform a slot, d, in the jaw which carries the projections or rollers, andsecure one of the projections-say dadjustably in the slot (P. Theprojection is read ily secured in the slot (1 by a clamping device, (1and the combination of apair of jaws, one of which is provided with ascraper and the other of which is provided with two projections, one ofwhich is adjustable, to increase or diminish the distance between it andthe side of the blade, and between which the blade projects when thejaws are shunis another feature of my invention.

\Vhat I claim is- 1. The combination oftlie reciprocating'carrier B,provided with a fixed jaw, D, and a jaw, D,with means, substantiallysuch as described, for closing the jaws, the jaw D being fulcrumed incarrier B, all arranged and op erating substantially as set forth.

2. The combination ofjaws DD and means for reciprocating them, withprojections d d and blade d, the projections being mountedin one jaw andthe bladein the other jaw, and the blade extending between theprojections when the jaws are closed, substantially as set forth.

3. The combination of the jaws D D and means for reciprocating them,withprojections d d and blade d, the projections being mounted in one jawand the blade in the other jaw, and one of the projections beingadjustable, to increase or diminish the distance between it and thesideof the blade, substantially as and for the purpose set forth.

PATRICK H. DALEY.

Witnesses:

H. C. YOUNG, JOHN R. SNOW.

